How to set database.config infos using an consult from database postgres on CakePHP?

I want to set the database config from CakePhP 2.x with data from database

Example - database.config:

public $bd_test = array (          'datasource' => 'Database/Postgres',          'persistent' => false,          'host' => 'localhost',          'login' => 'root',          'password' => 'root',          'database' => 'bd_test',          'port' => '5432',          //'encoding' => 'UTF-8'  );

Should looks like:

(I Know That I Cant Do THIS, It's Just To Have an Idea)

$dataFromDb = $this->Model->find('all', array('fields' => array('host', 'login', 'password', 'database', 'port'), 'conditions' => array('database' => 'bd_test')));




public $bd_test = array (          'datasource' => 'Database/Postgres',          'persistent' => false,          'host' => $dataFromDb['host'],          'login' => $dataFromDb['login'],          'password' => $dataFromDb['password'],          'database' => $dataFromDb['database'],          'port' => '5432',          //'encoding' => 'UTF-8'  );

Something like that.. I guess that the Idea is clear, right? If need some more information, please tell me. Thanks.

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